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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div {
            width: 200px;
            height: 200px;
            background-color: red;
            padding: 10px;
            border: 15px solid red;
            margin: 20px;
        }
    </style>
    <script src="jquery.min.js"></script>
</head>
<body>
    <div>

    </div>
    <script>
        $(function() {
            // 1.width()/height() 获取元素的width和height的大小

            // 2.innerWidth() / innerHeight() 设置元素 width和height+padding 大小

            // 3.outerWidth( )/outerHeight() 获取width和height+padding+border 大小

            // 4.outerWidth(true)/outerHight(true) 获取width和height+padding+border+margin 
        })
    </script>
</body>
</html>